马蒂已死，悲痛的回忆如潮水涌来，难以忘怀。羽毛球场地标准尺寸是多少

　　A teenage boy called Martin (Marty) is hit by a truck and dies. His father wants to tell those sad news to his friends through Marty's facebook account, but what he finds there indicates, that his death might not be an accident...